Frank, Thanks for the suggestions! The easiest way to fix this problem is to replace gdImageCreateFromXXX to the corresponding gdImageCreateFromXXXCtx in the mapserver code. I have posted a bug as a reminder for it to
http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=1513 I have compiled mapserver and the related libraries using Visual Studio 7 and I don't think it is a good idea to back out to VS6 as to eliminate the need to recompile the GD library. However to create a working nmake makefile for MSVC seems to be a great adventure so I would be pleased if anyone had a suitable solution and shared it with me. Tamas Szekeres On Sun, 30 Oct 2005 23:19:46 -0500, Frank Warmerdam <[EMAIL PROTECTED]> wrote: >On 10/30/05, Tamas Szekeres <[EMAIL PROTECTED]> wrote: >> Hi list, >> >> When placing the file name of the image symbol (gif or png) into the map >> file instead of the symbol definition file an unhandled exception occurs >> in mapsymbol.c, line 517 >... >> [EMAIL PROTECTED]() + 0x27 >> > libmap.dll!msAddImageSymbol(symbolSetObj * symbolset=0x00cfa188, >> char * filename=0x003ffc18) Line 517 + 0xd C >... >> Could anyone help me to fix this issue? > >Tamas, > >msAddImageSymbol() calls fopen() and then passes that >file handle to gdImageCreateFromPng(). The gd function is >in a different DLL and if either bgd.dll or libmap.lib are built >with the default C library on windows, it will be unable to utilize >the file descriptor opened in mapsymbol.c. > >Normally I avoid this by ensuring I build with the C runtime library >which can be accomplished by using /MD. You also have to >ensure that bgd.dll is built with a compatible runtime library. >I think the normal bgd.dll is built with VC6 so you would need to >use VC6 for mapserver as well. > >I actually thought we had restructured mapserver to avoid passing >file handles to the GD png (and gif, and jpeg) functions to avoid >this issue, but apparently it exists in at least this function. I would >encourage you to file a bug report on it, and someone can fix it. >In case that someone might end up being me, please include >a minimal map file that will demonstrate the problem as I don't >imagine I normally go through this function. > >Best regards, >-- >---------------------------------------+---------------------------------- ---- >I set the clouds in motion - turn up | Frank Warmerdam, [EMAIL PROTECTED] >light and sound - activate the windows | http://pobox.com/~warmerdam >and watch the world go round - Rush | Geospatial Programmer for Rent
